Birds Flashcards
Birds are ______ with feathers and capable of flight
endothermic vertebrates
They are descendant of what dinosaur
bipedal dinosaur
What increases the are for attachment of the flight muscles in birds
keeled sternum or posses carina
A single occipital condyl which are modified by partial or complete loss of one of the temporal arches
diapsid skull
How many genera and species of Philippine birds are endemic
9 genera, 172 species
Who categorizes threatened species categories as defined in any six criteria.
Internatiinal Union for the Conservation of Nature
A taxon (V) Vulnerable when___, (E) Endangered ____, Crtically Endangered (C)_____
V- high risk of extinction
E- very high risk of extinction
C- extremely high risk of extinction
How many threatened endemic species of birds is listed in the Philippines Red Data book published by Wildlife Conservation Society of the Philippines
75 threatened endemic species
What are the modification of forelimbs of birds
wings bearing feathers
Hindlimb is divided into
thigh, shank, or legs and foot that consists tarsus
How many maximum toes does birds have
4
Parts of the bill of the bird
-culmen, central ridge
-maxillary, cutting edge
-cere, soft fleshy basal
Nostrils of bird
Nostrils may be slitlike or oval
What is it called when the nostrils are separated by septum and are not
-imperforate (separated)
-perforate (not separated)
What covers two nostrils at least in part by fleshy or
horny operculum
The ____ or branches of the lower mandible are fused forming a ridge called ____
rami, gonys
In most birds feet are
featherless
Definite tracts
pterylae
Bare patches
apteria
The study of feathers and their arrangement is called
pterylosis
Most birds have ____ but some have but some have more or less this number
12 rectrices
Bright, red pigment
carotenoids
Orange, yellow color
Melanin
Dark reddish brown
chestnut
